Pin cutting device
By designing a pin cutting device including a limit structure and a cutting device, the problem of bending and deformation of the semiconductor pin during the cutting process is solved, and the effect of stably cutting the pin and reducing the deformation amount is achieved.
Patent Information
- Application Number
- CN202421041102.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-14
AI Technical Summary
During semiconductor processing, the pins are prone to bend and deform during cutting, resulting in package damage and welding and assembly operations.
A pin cutting device is designed, including a base plate, mount, rectangular block, cutting groove, cutting knife and cutting cylinder. The pin is limited through the jacks and cut-off slots on the rectangular block, and the pin is cut-off using a cutting knife and a cutting cylinder. The wedge-shaped structure of the cut-off groove and cutting knife reduces the amount of bend at the pin cut-off.
It effectively avoids bending and deformation of the pin during the cutting process, ensures the normal operation of semiconductor packaging and welding assembly operations, and reduces the deformation of the pin cutting end.
Smart Images
Figure CN222626053U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of semiconductor processing, in particular to a pin cutting device. Background Art
[0002] In order to facilitate the processing of semiconductors, their pins are relatively long. After the processing is completed, in order to facilitate the welding and installation operations of the semiconductors, the pins need to be cut according to the design requirements. However, when cutting the pins, due to the lack of pin limiters, the pins often bend and deform. The bending and deformation of the pins can easily damage the package body and will also affect the welding and assembly operations of the semiconductor. Utility Model Content
[0003] The utility model provides a pin cutting device to solve the above-mentioned deficiencies of the prior art. When bending the pin, the pin can be positioned, thereby avoiding the problem of pin deformation during the cutting process, and has strong practicality.
[0004] In order to achieve the purpose of this utility model, the following technologies are proposed:
[0005] A pin cutting device comprises a bottom plate, a mounting seat is mounted on the bottom plate, a rectangular block is mounted on the upper end of the mounting seat, four insertion holes are opened on the rectangular block in the length direction, cutting grooves are opened on the upper and lower sides of the rectangular block, the inner ends of the cutting grooves cut the insertion holes laterally respectively, and the pins can be limited by the four insertion holes, thereby avoiding the problem of bending and deformation of the pins when bending.
[0006] The upper and lower walls of the rectangular block are respectively provided with vertical plates, a pair of vertical holes are opened on the vertical plates, connecting screws are movably provided in the vertical holes, a cutting knife is installed at one end of each pair of connecting screws, and a movable outer plate is installed at the other end of each pair of connecting screws, a convex portion is provided on the movable outer plate, and an action wheel is rotatably provided on the convex portion. The pair of relatively moving cutting knives are provided to facilitate the cutting operation of the pins. At the same time, by providing a pair of cutting knives, the cutting operation of the pins can be realized with a small movement, thereby reducing the deformation of the cutting end of the pin.
[0007] A mounting plate is installed on the bottom plate, a cutting cylinder is installed on the mounting plate, a movable push plate is installed on the movable end of the cutting cylinder, an inner extension plate is installed on the movable push plate, a first transverse hole is opened on the inner extension plate, the other end of the first transverse hole is connected with an oblique hole, the other end of the oblique hole is connected with a second transverse hole, the second transverse hole is located above the first transverse hole, the action wheel moves in the first transverse hole, the oblique hole and the second transverse hole, and the movable push plate can be driven to move by the arranged cutting cylinder, and when the movable push plate moves, the cutting knife can be moved inward through the oblique hole, and the movement of the cutting knife will complete the cutting operation of the pin.
[0008] Furthermore, the cutting groove is a wedge-shaped structure to reduce the bending amount of the pin at the cutting position.
[0009] Furthermore, the lower end of the cutting knife is a wedge-shaped structure to reduce the bending amount of the pin at the cutting position.
[0010] Furthermore, a plurality of guide cross bars are arranged on the movable push plate, and a guide sleeve is sleeved on the guide cross bars. The guide sleeve is installed on the rectangular block, and the movement of the movable push plate is guided by the guide cross bars.
[0011] Furthermore, an outrigger arm is installed on the movable push plate, an action transverse hole is opened on the outrigger arm, an action push rod is inserted in the action transverse hole, an upper extension rod is installed on the bottom plate, a vertical axis is provided at the upper end of the upper extension rod, a rotating pressure plate is sleeved on the vertical axis, an upper plate strip is provided at the upper end of the rotating pressure plate, a torsion spring is sleeved on the vertical axis, one end of the torsion spring is arranged on the root of the rotating pressure plate, one end of the torsion spring is arranged on the root of the upper plate strip, and the upper plate strip is independently rotated and arranged on the vertical axis, and the length direction of the upper plate strip and the length direction of the rotating pressure plate have an angle, and the action push rod is arranged at the outer end of the upper plate strip. Through the outrigger arm and the action push rod, when the outrigger arm moves with the movable push plate, the upper plate strip and the rotating pressure plate will rotate, thereby pushing the semiconductor inward to move inward, and at the same time, the torsion spring can prevent the rotating pressure plate from pushing the semiconductor to move when the semiconductor is pushed into place by the rotating pressure plate, thereby preventing the semiconductor from being damaged.
[0012] The advantages of the above technical solution are:
[0013] The utility model facilitates the cutting operation of semiconductor pins and can also avoid the problem of excessive deformation of the pins. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.
[0015] Figure 1 A three-dimensional structural diagram of one embodiment is shown.
[0016] Figure 2 An enlarged view of A is shown. DETAILED DESCRIPTION
[0017] like Figure 1~Figure 2 As shown, a pin cutting device includes a base plate 1, a mounting seat 2 is installed on the base plate 1, a rectangular block 3 is installed on the upper end of the mounting seat 2, four plug holes are opened on the rectangular block 3 through the length direction thereof, cutting grooves 30 are opened on the upper and lower sides of the rectangular block 3, the cutting grooves 30 are wedge-shaped structures, and the inner side ends of the cutting grooves 30 cut the plug holes laterally.
[0018] The upper and lower walls of the rectangular block 3 are respectively provided with a vertical plate 4, a pair of vertical holes 40 are opened on the vertical plate 4, and connecting screws 41 are movably provided in the vertical holes 40. A cutting knife 42 is installed at one end of each pair of connecting screws 41, and the lower end of the cutting knife 42 is a wedge-shaped structure. A movable outer plate 43 is installed at the other end of each pair of connecting screws 41, and a convex portion 44 is provided on the movable outer plate 43. An action wheel 45 is rotatably provided on the convex portion 44. A mounting plate 5 is installed on the bottom plate 1, and a cutting cylinder 50 is installed on the mounting plate 5. The movable end of the cutting cylinder 50 is installed with A movable push plate 51 is provided with an inner extension plate 52, a first transverse hole 53 is provided on the inner extension plate 52, the other end of the first transverse hole 53 is connected with an oblique hole 54, the other end of the oblique hole 54 is connected with a second transverse hole 55, the second transverse hole 55 is located above the first transverse hole 53, the action wheel 45 moves in the first transverse hole 53, the oblique hole 54 and the second transverse hole 55, a plurality of guide cross bars 56 are provided on the movable push plate 51, a guide sleeve 57 is sleeved on the guide cross bar 56, and the guide sleeve 57 is installed on the rectangular block 3.
[0019] An outrigger arm 63 is installed on the movable push plate 51, and an action transverse hole 64 is opened on the outrigger arm 63, and an action push rod 62 is passed through the action transverse hole 64. An upper extension rod 6 is installed on the bottom plate 1, and a vertical axis is provided at the upper end of the upper extension rod 6, and a rotating pressure plate 60 is sleeved on the vertical axis. An upper strip 61 is provided at the upper end of the rotating pressure plate 60, and a torsion spring is sleeved on the vertical axis. One end of the torsion spring is arranged on the root of the rotating pressure plate 60, and one end of the torsion spring is arranged at the root of the upper strip 61, and the upper strip 61 is independently rotatable and arranged on the vertical axis. There is an angle between the length direction of the upper strip 61 and the length direction of the rotating pressure plate 60, and the action push rod 62 is arranged at the outer end of the upper strip 61.
[0020] During operation of this embodiment, the operator places the semiconductor on the conveyor belt, and then the semiconductor is driven to the rectangular block 3 by the conveyor belt, and then the cutting cylinder 50 is started, and the movable push plate 51 is moved under the drive of the cutting cylinder 50, and the movement of the movable push plate 51 drives the outrigger arm 63 to move, and the movement of the outrigger arm 63 acts on the action push rod 62 through the action cross hole 64, thereby causing the upper plate 61 to rotate, and when the upper plate 61 rotates, it drives the rotating pressure plate 60 to rotate, thereby pushing the rotating pressure plate 60 The semiconductor moves inward and the pin of the semiconductor is inserted into the socket. At this time, the action wheel 45 moves in the first transverse hole 53. When the semiconductor is moved into place, the upper strip 61 continues to rotate and the torsion spring is bent. At this time, the action wheel 45 will move in the oblique hole 54, so that the cutting knife 42 moves inward and the blade thereon cuts off the pin. After the cutting is completed, the movable push plate 51 moves to the starting position driven by the cutting cylinder, and then the rotating pressure plate 60 and the cutting knife 42 move to the starting position and wait for the cutting operation to be performed again.
[0021] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalents, the utility model is also intended to include these modifications and variations.
Claims
1. A pin cutting device, characterized in that: The invention comprises a bottom plate (1), a mounting seat (2) being mounted on the bottom plate (1), a rectangular block (3) being mounted on the upper end of the mounting seat (2), four insertion holes being provided on the rectangular block (3) running through the length direction thereof, cutting grooves (30) being provided on the upper and lower sides of the rectangular block (3), and the inner side ends of the cutting grooves (30) cutting the insertion holes transversely respectively; The upper and lower walls of the rectangular block (3) are respectively provided with vertical plates (4), a pair of vertical holes (40) are opened on the vertical plates (4), connecting screws (41) are movably provided in the vertical holes (40), a cutting knife (42) is installed at one end of each pair of connecting screws (41), and a movable outer plate (43) is installed at the other end of each pair of connecting screws (41), a convex portion (44) is provided on the movable outer plate (43), and an action wheel (45) is rotatably provided on the convex portion (44); A mounting plate (5) is mounted on the bottom plate (1), a cutting cylinder (50) is mounted on the mounting plate (5), a movable push plate (51) is mounted on the movable end of the cutting cylinder (50), an inner extension plate (52) is mounted on the movable push plate (51), a first transverse hole (53) is formed on the inner extension plate (52), the other end of the first transverse hole (53) is connected to an oblique hole (54), the other end of the oblique hole (54) is connected to a second transverse hole (55), the second transverse hole (55) is located above the first transverse hole (53), and the action wheel (45) moves in the first transverse hole (53), the oblique hole (54) and the second transverse hole (55).
2. The pin cutting device according to claim 1, characterized in that: The cutting groove (30) is a wedge-shaped structure.
3. The pin cutting device according to claim 1, characterized in that: The lower end of the cutting knife (42) is a wedge-shaped structure.
4. The lead cutting device according to claim 1, characterized in that: A plurality of guide cross bars (56) are arranged on the movable push plate (51), a guide sleeve plate (57) is sleeved on the guide cross bars (56), and the guide sleeve plate (57) is mounted on the rectangular block (3).
5. The lead cutting device according to claim 1, characterized in that: An outrigger arm (63) is mounted on the movable push plate (51), an action transverse hole (64) is formed on the outrigger arm (63), an action push rod (62) is inserted into the action transverse hole (64), an upper extension rod (6) is mounted on the bottom plate (1), a vertical axis is provided at the upper end of the upper extension rod (6), a rotating pressure plate (60) is sleeved on the vertical axis, an upper plate strip (61) is provided at the upper end of the rotating pressure plate (60), a torsion spring is sleeved on the vertical axis, one end of the torsion spring is arranged on the root of the rotating pressure plate (60), one end of the torsion spring is arranged on the root of the upper plate strip (61), and the upper plate strip (61) is independently rotatable and arranged on the vertical axis, the length direction of the upper plate strip (61) and the length direction of the rotating pressure plate (60) form an angle, and the action push rod (62) is arranged at the outer end of the upper plate strip (61).